new index	atom name	original index
1	C	10
2	C	4
3	C	3
4	C	6
5	C	9
6	C	5
7	C	2
8	N	8
9	O	7
10	O	1
11	H	18
12	H	17
13	H	19
14	H	13
15	H	12
16	H	14
17	H	15
18	H	16
19	H	11
